Gem Graphites Private Limited · Ferro Magnets & Allied Products Ltd. · Gem Spinners India Limited · Gem Energy Industry Limited · Gem Quartz Private Limited · Gem Software Solutions Limited · Gem Agro Industries Limited · Shanmugha Granite Industries Private Limited · Gem Global Trade Limited · Gem Earth Treasures Private Limited · Sri Raghuramachandra Minerals Private Limited · Gem Holiday Resorts Limited. · U17111 Tn1990 Plc019791